Increased load capacity of worm gears by optimizing the worm wheel bronze

摘要

This article presents some new results on how to select and influence material parameters of worm wheel bronzes regarding wear resistance. Extensive studies on cylindrical worm gears lead to the following recommendations concerning an advantageous wear behavior: · Higher nickel contents cause a drastic decrease of wear, · Phosphor contents higher than 0.06% should be avoided, · A homogenous and fine-grained crystal structure is favorable, and · In smaller worm gears, modified continuously cast bronze should be used instead of conventional continuously cast bronze. Further information on this topic can be found in the final report on the Forschungsvorhaben 205 (Research Project No.205) of the Forschungsvereinigung Antriebstechnik e.V., Germany (Ref. 6).